frass /fɹæs/noun 3adjective 1forms 3 noun3 •The droppings or excrement of insect larvae. •The sawdust-like byproduct of wood-boring insects like woodworm, termites, old-house borers or powderpost beetles.Examine the stalk, especially behind the sheaths, for holes and sawdustlike frass where the larvae have entered to tunnel in the stalk. — 1968 •(informal, slang) artificial turfAlthough purists object to artificial turf or ‘frass’, it finds purchase as way to save water in parched Golden State — 2015 adjective1 •(slang) Under the influence of marijuana, stoned. formsfrasses · frasser · frassest
